This project focuses on beginning to assess the long-term structural performance of an ultra-high performance concrete component, which is continuously subjected to both cyclic structural loading in an aggressive environment. An ultra-high performance concrete beam was loaded cyclically in flexure for 500,000 cycles over the course of 5 months while simultaneously having a sodium chloride solution applied to the cracked tensile face of the beam.

Goals:

The key project objective is to investigate performance of ultra-high performance concrete (UHPC) when subjected to large structural loadings in the presence of an aggressive environment. The goal is to facilitate applicable use of this advanced cementitious material in the bridge inventory.

Product Type:

Research reportTechbrief

Test Methodology:

Use structural testing methods to load a beam in flexure beyond its cracking limit while applying a salt solution to the tension flange.

Other Information:

Pilot study testing is complete. Final report has been published.

Expected Benefits:

Deliverables study will advance the state of knowledge regarding the performance of UHPC-class materials subjected to simultaneous severe structural and environmental (salt water) loading.

Deliverables:

1. Name: Simultaneous Structural and Environmental Loading of a UHPC ComponentProduct Type(s): Research report, TechbriefDescription: Summary of research study results.Publication URL(s):http://www.fhwa.dot.gov/publications/research/infrastructure/structures/10055/index.cfm2. Name: Simultaneous Structural and Environmental Loading of a UHPC ComponentProduct Type(s): Research reportDescription: Full report covering results of research study.